Here we the difference between main and auxiliary verbs, how auxiliaries like be, have, do, and modals create tense, aspect, and voice, their use in questions and negatives, common mistakes, and offers exercises to practice main versus auxiliary verbs.

Here we the most common reported speech errors, including incorrect tense changes, pronoun and reference mistakes, word order issues in questions, and overusing backshifting. It also offers practical tips to help you avoid these problems.

This article explains what wh-questions are, how to report them by changing word order, removing auxiliary verbs, and adjusting pronouns and tenses. It also covers formal English usage and highlights common learner mistakes.

The article explains what reporting verbs are and compares pairs like say and tell. It covers how to use reporting verbs with objects and clauses, discusses meaning differences, guides verb choice for context, and points out typical learner mistakes.

Here we how to report yes or no questions, including when to use if or whether, changes to word order, pronoun and tense adjustments, distinctions between formal and informal reporting, and common mistakes learners should watch for.

This article explains how to tell apart and report promises, offers, and warnings in English. It covers common reporting verbs, sentence patterns, pronoun and time shifts, reporting styles, and frequent learner mistakes.

Here we why place references change in reported speech, how demonstratives like this, that, these, and those are used, the use of here and there, how speaker perspective and context affect choices, and typical mistakes learners make.

Here we the use of that-clauses in reported speech, including which verbs take them, when that is optional or required, how to structure these clauses, their effect on meaning and emphasis, and common mistakes learners make.

Here we why time expressions change in reported speech, lists typical direct and reported forms, and explains the difference between direct and indirect time references.

Here we why pronouns change in reported speech, how subject, object, and possessive pronouns shift, and the impact of speaker perspective and context. It also points out typical mistakes people make when changing pronouns.